Mixing-machine.



E. A. LAHIERE.

MIXING MACHINE.

APPLICATION FILED MAY I3. 1914.

Patented June 8, 1915.

2 SHEETS-SHEET l.

E. A. LAHlnE.

MIXING MACHINE.

APPLICATION FILED MAY I3. 1914.

Patented June 8, 1915.

2 SHEETS-SHEET 2.

Wmme@ :nl NURRIS Pell- NS co.. PHOTO LJTHC.. WASHINUIUN. D, C.

.EUGENE A. LAHIBIE, 0F WASHINGTON, DISTRICT OF COLUMBIA.

MIXING-MACHlNE.

Specification of Letters Patent.

Patented June 8, 1915.

Application filed May 13, 1914. Serial No. 838,326.

To all whom t may concern Be it known that EUGENE A. LAHrRE, citizen of France, residing at Washington, in the District of Columbia, have invented certain new and useful improvementsl in Mixing-Machines, of which'the following is a specification. Y

rirhis invention relates to mixing machines, and more particularly to a machine designed especially for use in preparing mayonnaise dressing.

1t is a well Vknown fact that for'the proper preparation of mayonnaise dressing, the ser-` vices of an experienced chef are required, inasmuch as the ingredients must be added to each other in exactly the proper relative proportions and at proper intervals in order to produce a perfectV mixture and one which is not curdled.. lt is therefore the aim ofthe present invention to provide a machine which may be used by an inexperienced person and by the use of which mayonnaise dressing may be prepared in as perfect a manner as though mixed by hand by the most experienced person.

To accomplish this result, the machine embodying the present invention is so constructed that by the mere turning of a crank the ingredients are added to each otherv at the proper relative intervals for each ingredient and in exactly the proper proportions, the mixture being in the meantime constantly agitated.

It is another aim of Vthe'invention to so construct the machine that the same may be adjusted so as to vary the quantities of vinegar and olive oil supplied at the proper intervals, the adjusting means being of such character that the'relative proportions kof these two ingredients may be varied as well as the quantities delivered at each interval.

Another aim of the invention is to so mount the containers for the olive oil and vinegar and the receptacle for the mixture,

that all may be readily removed and cleaned whenever desired without the use of tools and without disarranging the operating mechanism or disassembling any of its parts.

In the accompanying drawings: Figure l is a. perspective view vof the machine embodying the present invention. Fig. 2 is a side elevation of the machine. Fig. 3 is a front elevation thereof, parts being shown in section. Fig. 4 is a Vperspective view illustrating one of the valve devices arranged to lcontrol the flow of the ingredients from the ingredient containers. Fig. 5 is a horizontal sectional view on the line 5--5 of Fig. 8. Fig. 6 is a perspective view of the bearing for the dasher shaft.

Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying drawings by the same reference characers. v 1n the drawings, the machine is illustrated as including a base plate 1 which may be of any desired or suitable outline and which has secured to it near its' lower edge a clamp member 2 carrying a clamp screw 3 designed to be tightened to bear against the under side of a table or other support engaged by the clamp and upon which the machine is to be mounted, the clamp member including a jaw 4 which bears against the upper side of the said support.

ln order to steady the base plate 1, lugs 5 project from the lower edge of the plate and are arranged to abut against the edge of the said table or support, and other lugs 6 project from the lugs 5 and rest against the upper side of the support. The ingredients are to be delivered into a receptacle, preferably in the form of a-cup 7, which may be of any suitable size and which i-s provided with a false bottom 8 which is concavo-convex andhas its concave side presented upwardly.

In providing means for supporting the cup in position upon the plate 1, the plate is formed with a transversely extending incision and with short vertical incisions at right angles and in opposite direction from the first-mentioned incision, and the material of the plate between the incisions is bent to form curved arms- 9 which extend in opposite directions and to which are secured leafspring gripping fingers 10 also curved to lit the contour of the cup 7 and thereby hold the same in position beside one face of the plate.

The cup is preferably provided near its end or mouth with a'circumscribing bead 11 which rests upon the upper edges of the fingers l0 and in order to brace the lower end or, bottom of the cup, the material of the plate is formed with incisions and the plate between these incisions is struck out to form fingers 12 against which the said lower end of the cup rests when engaged by and supported between the lingers 10. The receptacle or cup 7 is provided with a handle 13 which may be grasped for the purposeof placing the receptacle in position'or removing the same. Y

The dasher for agitating the miXture is mounted to rotate within the receptacle 7 and is constructed and rotated in a manner which will now be described. The dasher comprises two dasher members, one of which includes sleeves 14 and 15 located at its upper and lower ends, and the sleeve 15 is provided with radial arms 16 supporting the lower ends of dasher blades 17, the upper ends of these blades being connecteclwvith upwardly inclined arms 18 which connect to the sleeve 14 at their inner ends. 14 has fixed upon it a pinion 19 which is to mesh with the gear provided for rotating the dasher members. rlhe dasher member a bracket arm 20 providediwith an integral halfbearing 21 to which is hinged a combearing closed.

panion half-bearing 22, the bearing 21 being provided at its side opposite its hinged side with spaced apertured ears 23 and the bearing 22 being provided at its correspond` ing end with an apertured ear 24. When the bearings are closed about the sleeve 14 in the manner shown in Fig. 3 of the drawings, a pin 25 is fitted through the openings in the arms 23 and 24 and serves to hold the rThe sleeve 14 serves also as a bearing fora shaft 26 upon which the other dasher member is mounted, the said shaft 26 being fitted at its lower end through the sleeve 15 and provided with a collar 27 resting against the upper end of the sleeve, whereby to limit the downward movement of the shaft, as will be readily understood from an inspection of Fig. 3. The said other dasher member is in the form of a flat sided head 28 secured to the lower end', of the shaft 26 and extending transversely above and relatively close to the false bottom 8 of the receptacle 7. lAt its upper end the shaft 26 is rotatablyV received within a bearing formed by striking down a portion of the plate 1 to'provide a bearing arm 29 projectingl from one face of the said plate and provided with an opening to receive the said shaft, as stated. Near itsV upper end, the shaft has Xed upon it a pinion 30 and the Y said pinion and the pinion 19 mesh with a gear 31 Yxed upon a shaft 32 rotatably mountedin an opening in the plate 1, and in an opening in a bracket 33 secured upon one face of the said plate 1. The shaft 32 projectsa short distance beyond the bracket and a crank handle 34 is fixed to its projecting end and is to be employed for the purpose of rotating the shaft, whereby to impart rotary movement to the dasher members in opposite directions, as will be readily un- The sleeve derstood. It will now be apparent that by removing the pin 25, the shaft 26 together with both dasher members may be swung outwardly from the plate 1 a suiiicient distance to permit of the disengagement of the receptacle from its support.

Mounted upon the plate 1, above the receptacle 7,'are containers for olive oil and for vinegar, these containers being'provided each with a valve device for controlling the flow of these ingredients therefrom. rfhe container for the olive oil is indicated by the numeral 35 and is in the form of a cup generally tapered toward its bottom, 'as indicated at 36, and provided with a spout 37 which opens through its bottomand which extends angularly'above the receptacle 7 so as to discharge Vvtheoil thereinto. One side of the container 35 is flattened', as'indicated at 38, so as to permit of its disposal against that side of the plate 1 at which the'receptacle 7 is located, and in orderthat the container maybe removably supported in place upon the plate, it is provided upon its wall 38 with an elongated headed stud 39 preferably T-shape in cross section, the head of the stud being disposed vertically and the shank of the stud being removably fitted in aV slot 40, formed in the plate near the upper edge thereof and opening at the outer edge of the plate. It will be understood at this point that in order to remove the container, it is only necessary to slide the same laterally in a direction away from the center ofV the plate so as to disengage its stud from the slot. This structure, of course, provides for ready removal of the container whenever it is desired to clean the same.

The valve for controlling the flow of olive oil from the container 35 is clearly shown in Fig. 4 of the drawings, and it will be ob served by reference to Fig. 6, that at the point of juncture of the upper end of the spout 37 with the bottom of the container, the said bottom is.l provided withv an inwardly projecting. annular flange 41 to which is VYfitted a valve seat 42 preferably in the nature of a rubber ring having kits outer periphery channeled to receive the i said flange. The valve comprises a head 43 tapered in the direction of its lower end and of a diameter, adjacent its upper end, to snugly fit within the valve seat 42, the lower portion of the valve being fluted, as Vat 44, so as to permit of the outiiow of the oil when the valve is lifted from its seat.

The stem of the valve is indicated by the numeral 45, and is secured at its lower lend to the upper end of the valve and is slidablyV supported in the arms 46 of a bracket 47 secured upon the wall 38 of the container. The stem 45 is preferably provided at its upper end with a hook or open ring 48, the purpose of which will be presently eX- plained.

In order to hold the valve to its seat a spring 49 is fitted upon the stem 45 and bears at its upper end against the lower one of the arms of the bracket, and at its lower end against the upper end of the valve, it being understood of course that the opening movement of the valve is against the tension of this spring.

The container for the vinegar is indicated by the numeral 50 and is provided with a spout l, which corresponds to the spout 37, and which is arranged to discharge into the receptacle 7. As in the case of the oil container, the vinegar container is provided at the juncture of its spout 51 with its bottom, with a valve seat 52, corresponding to the valve seat 42, and a valve 53, corresponding in structure to the valve 43, is arranged to coperate with the seat whereby to control the flow of vinegar from the container.

The stem for the valve 53 is indicated by the numeral 54 and is provided at its upper end with a hook or open ring 55, corresponding to the hook 48 upon the stem 45. The stem 54 is mounted in a bracket 56 arranged within the container 50 in the same manner as the bracket 47 is arranged within the container 35, and a spring 57 is arranged upon the stem 54 and serves to hold the valve 53 to its seat. Y

The container 50 is held in place against the plate l by providing upon it an elongated head stud 58, corresponding to the stud 39, and removably fitted within a slot 59 formed in the said plate 1, as clearly shown in Fig. 1 of the drawings.

The means provided for automatically, intermittently actuating the valves as the crank handle 34 is rotated, will now be described. The plate 1'is provided at its upper edge with integral upstanding brackets 60 and 61, located respectively at the rear of the containers 35 and 50, and these brackets are provided respectively with yoke portions 62 and 63, in which are mounted the lifting rockersfor the valves. The rocker which is mounted within the yoke 62 is indicated by the numeral 64 and is formed with a. slot 65 in which is pivoted, as at 66, the lower fiattened end of a threaded stem 67, the upper or threaded end of the stem being fitted through an opening in the connecting portion of the yoke and having adjustably threaded upon it a thumb nut 68.

The rocker which is mounted within the yoke 63 is indicated at 69 and is provided with a sleeve in which is pivotally fitted the lower end of a stem 71 provided with a thumb nut 72 adjustably threaded thereon. A link 73 is pivoted at its upper end to that end of the rocker 64 which projects above the container 35, and this link at its lower end is provided withV an eye 74 in which may be engaged the open ring 48 at the upper end of the valve stem 45, the stem being in this manner detachably connected with the rocker. A link 75 is pivoted to the other end of the rocker 64 and at its lower end is pivoted, as at 76, to one end of an angular trip finger 77 mounted as at 78, for rocking movement upon the plate 1. A link 79, corresponding to the link 73, is pivotally connected to that end of the rocker 69 which projects above the container 50 and the lower end of this link is provided with an eye detachably engaged with the open ring 55 at the upper end of the valve stem 52. A link 8O is pivotally connected at its upper end to the other end of the rocker 69 at its lower end to one end of an angular trip member 81 pivotally mounted, as at 82, upon the plate 1. A pinion 83 is fixed upon the shaft 32 and lies at that side of the plate at which the trip fingers are located, and this pinion meshes with a gear 84 rotatably mounted upon a stub shaft 85 upon the plate 1. A pinion 86 is fixed for rotation with the head 84 and meshes with a gear 87 rotatably mounted upon a s'tub shaft 88 supported upon the said plate 1. It will now be apparent that upon rotation of the crank handle 34, the gear 84 will be rotated at a relatively low rate ofV speed through the medium of the pinion 83 and that the gear 87 will be rotated at a lower rate of speed than the gear 84 through the medium of the gear 86. IThe trip fingers 77 and 81 lie in a plane between the gears 84 and 87 and the gear 84 is provided with a plurality of trip pins 89 and the gear 87 is provided with one or more trip pins 90. The trip finger 77 projects in the path of movement of the pins 89 and the finger 81 projects -in the path of movement of the pin 90. Consequently, when the gears are rotated, the pins 89 will successively sweep over the trip finger 77, thereby intermittently rocking the same, and in a like manner the pin 90 will sweep over the finger 81, but of course less frequently than will the pins 89 over the finger 77, due of course to the difference in speed of rotation of the gears 84 and 87. It will be apparent therefore that the trip finger 77 will be rocked or tripped a number of times to one such movement of the finger 81. Referring now to Fig. 1 of the drawings, it will be obvious that as each pin 89 sweeps over the trip linger 7 7 this finger will be rocked and the link 79 will be pulled downwardly, thereby rocking the rocker 64 in a manner to pull upwardly upon the valve stem 45, whereby to momentarily move the valve 43 to open position. In a like manner, as the nger 81 is rocked, the link 80 will be pulled downwardly to rock the rocker 69 and thereby momentarily move the valve 53 to open position.

It will be understood that the distance to which either of the valves is moved to open position and the length of the period during which it will remain in open position will dependV upon the angular position of its respective trip finger. Such movement of the trip lingers 77 and 81 may be varied by rotating the thumb nuts 68 and 72 respectively. In this connection it will be appar ent that the springs which are associated with the valve stems, offer a resistance to the upward swinging of the ends of the rockers to which the links 73 and 7 9 are connected, but that practically no resistance is offered to the upward swinging movement of the other rockers, inasmuch as the trip fingers are free to move without resistance through the raising or lowering of the links 75 or 80, as the case may be. Therefore, when the thumb nuts 68 and 72 are screwed down upon the respective stems, so as to pull upwardly upon the said rockers, neither of the valves will be disturbed but an upward pull will be exerted upon the links 75 or 80, as the case may be, so as to angularly adjust the trip fingers for the purpose stated. Y

In using the machine, the eggs are first broken linto the receptacle 7 and the containers 35 and 50 are filled or partly filled with olive oil and vinegar respectively. The crank handle is then rotated, setting in motion the dasher members to churn the eggs. As the crank handle is rotated, the trip finger 77 will be tripped a number of times to cause successive discharge of predetermined quantities of olive oil into the receptacle to be mixed with the eggs, and after' the trip nger 77 has been tripped a predetermined number of times, the trip finger 81 will be tripped automatically, whereby to cause a predetermined quantity of vinegar to be discharged into the receptacle. The mechanism is of course so constructed and the pins 89 and 90 are so arranged that the olive oil and vinegar will be introduced into the receptacle in exactly the proper proportions and at exactly the proper intervals, both individually and in relation to each other.

It. will be understood that when it is desired to remove either the oil container or vinegar container, the rocker for the respective valve is depressed at its end which is connected to the valve stem so that the respective link may have its eye disengaged from the hooked end of the valve stem. Whenthis has been done the container may be removed from the plate 1,. and it will 'be obvious that the valve will remain in closed position so that even should there be some oil or vinegar left within the con tainers there will be no leakage. It will also be understood that if desired, the gears 84: and 87 may be provided with a number of openings in which the pins 89 and 90, as the case may be, may be interchangeably Vtted, so as to relatively vary the frequency with which the trip lingers are tripped.

I-IavingV thus described the invention, what is claimed as new is:

1. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, and means operable toautomatically discharge ingredients into the receptacle at relatively variable predetermined in tervals and in predetermined relative quantities during the mixing operation.

2. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, means operable to automatically discharge ingredients into thev receptacle in predetermined quantities during the mixing operation and at predetermined intervals, and means whereby the frequency of operation of said means may be varied.

3. In a mixing machine, a mixing Vrece-ptacle, mixing means operating within the re.- ceptacle, ingredient containers arranged to discharge into the receptacle, a valve in each container controlling the discharge therefrom, and means operable to automatically intermittently open the valves at relatively variable predetermined intervals during the mixing operation.

4.k In a mixing machine, a mixing reeeptaele` mixing means operating within the receptacle, ingredient containers arranged to discharge into the receptacle, a valve arranged within each container for controlling the discharge therefrom, means operable to automatically open thev valves at predetermined relative intervals during the mixing operation, and means whereby the relative frequency of operation ofthe operating means for the valves may be varied.

5. In a mixing machine, a mixing receptacle, mixing means operating within the iveceptacle, ingredient containers arranged to discharge into the mixing receptacle', a'valve within each of said containers for controlling the discharge therefrom, means operable to automatically open the valves at relatively variable predetermined intervals during the mixing operation, and means for varying the extent to which the valves are opened.

6. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, ingredient containers arranged to kdischarge into the receptacle, a valve controlling the discharge from each container, means operable to automaticallyY open the valves at predeterminedv relative intervals, means adjustable to vary the extent to which the valves are opened, and means whereby the frequency of actuation of the operating means for each valve may y be varied. p

7. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, an ingredient container arranged to discharge into the receptacle, a valve controlling the discharge from the container, a trip finger having connection with the valve, and means arranged to intermittently cooperate with the trip finger during the mix.

ing operation whereby to open the valve at predetermined intervals.

8. In a mixing machine, a mixing receptacle, mixing means operating withinthe receptacle,ran ingredient container arranged to discharge into the receptacle, a valve controlling the discharge from the container, a trip finger having connection with the valve, means arranged to intermittently coperate with the trip finger during the mixing operation whereby to open the valve at predetermined intervals, and means for adjusting the trip finger with relation to its actuating means.

9. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, an ingredient container arranged to discharge into the receptacle, a valve con trolling the discharge from the container, a pivoted trip finger, connection between the finger and the valve, a rotatable member carrying a trip pin for cooperation with the trip linger to trip the same as the member is rotated, and means for rotating the member during the mixing operation.

10. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, an ingredient container arranged to discharge into the receptacle, a valve controlling the discharge from the container, a pivoted trip finger, connection between the finger and the valve, a rotatable member carrying a trip pin for coperation with the trip finger to trip the same as the member is rotated, means for rotating the member during the mixing operation, and means for adjusting the position of the trip finger with relation to the path of movement of the said trip pin.

11. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, an ingredient container arranged to discharge into the receptacle, a valve controlling the discharge from the container, a pivoted trip finger, connection betweeen the finger and the valve, a rotatable member carrying a trip pin for coperation with the trip finger to trip the same as the member is rotated, means for rotating the member during the mixing operation, and means for angularly adjusting the trip finger.

12. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, ingredient containers arranged to discharge into the receptacle, a valve for controlling the discharge from each container, a trip finger having operative connection with each valve, and means arranged to automatically trip the said fingers at pre-I determined relative intervals during the mixing operation.

13. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, ingredient containers arranged to discharge into the receptacle, a valve controlling the discharge from each container, a trip finger having operative connection with each valve, a movable actuating member for each trip finger, and means arranged to automatically move the said members at different rates of speed during themixing operation.

14. In a mixing machine, a mixing receptacle, mixing means operating within the re ceptacle, ingredient containers arranged to discharge into the receptacle, a valve con trolling the discharge from each container, a trip finger connected with each valve, members arranged to be automatically rotated at different rates of speed during the mixing operation, and means carried by each member for coperation with the respective trip finger.

15. In a mixing machine, a mixing receptacle, mixing means operating within the ree ceptacle, ingredient containers arranged to discharge into the receptacle, a valve controlling the discharge from each container, a trip finger connected with each valve, members arranged to be automatically rotated at different'rates of speed during the mixing operation, and means carried by each member forV cooperation with the respective trip finger, the last-mentioned means being adjustable to vary the frequency with which the trip fingers are actuated.

16. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, ingredient containers arranged to discharge into the receptacle, a valve controlling the discharge from each container, a trip finger connected with each valve, members arranged to be automatically rotated at different rates of speed during the mixing operation, means carried by each member for coperation with the respective trip finger, the last-mentioned means being adjustable to vary the frequency with which the trip fingers are actuated, and means for adjusting the trip fingers with relation to their actuating means.

17. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, an ingredient container arranged to discharge into the receptacle, a valve controlling the discharge from the container, a rocker, connection between the valve and rocker, a trip finger having operative connection with the rocker, whereby when the finger is tripped the valve will be opened, and means operable to automatically intermittently move the trip finger during the mixing operation.

18. In a. mixing machine, a mixing receptacle, mixing means operating within the receptacle, an ingredient-container arranged to discharge into the receptacle, a valve controlling the discharge from the container, a rocker, connection between the valve and rocker, a trip finger having operative'connection with the rocker, whereby when the finger is tripped the valve will be opened, means operable to automatically intermittently move the trip finger during the mixing operation, and means for adjusting the position of the trip nger with relation to its actuating means whereby to vary the opening movement of the valve.

19. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, an ingredient container arranged to discharge into the receptacle, a valve controlling the discharge from the container, a rocker, connection between the valve and rocker, a trip finger having operative connection with the rocker, whereby when the finger is tripped the valve will be opened, means operable to automatically intermittently move the trip linger during the mixing operation, and means for varying the position of the rocker whereby to adjust the trip finger with relation to its actuating means.

20. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, an ingredient container arranged to discharge into the receptacle, a valve controlling the discharge from the container, a rocker, connection between the valve and rocker, a trip finger having operative connection with the rocker, wiereby when the finger is tripped, the valve will be opened, means operable to automatically intermitv tently move the trip finger during the mixing operation, means yieldably resisting rocking movement of the rocker in one di-V rection, and means for raising and lowering the rocker whereby to adjust the position of the trip finger with relation to its actuating means.

21. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, an ingredient container having a spout leading therefrom in position to discharge into the receptacle, a valve seat located at the inlet end of the spout, a valve cooperating with the seat and having a stem slidably mounted within the container, a spring yieldably holding the valve to the seat, and means for automatically operating the valve intermittently during the mixing operation, the said means having detachable connection with the valve stem whereby the container may be removed with the valve Vin closed position and without disturbing the said actuating means for the valve.

22. In a mixing machine, a mixing receptacle, mixing means operating within the receptacle, an ingredient container having a spout leading therefrom in position to discharge into the receptacle, a valve seat at the intakerend of the spout, a valve cooperatingY charge into the receptacle, a valve controlling the discharge from the container, means yieldably holding the valve in closed position, the valve having a stem, a movable member mounted upon the supportE and having'detachable connection with the valve Y stem, and means for automatically actuating the member at intervals during the mixing operation.

24. In a mixing machine, av supporting plate, arms struckout from the plate and curved in opposite directions, resilient supporting arms extending from the first-mentioned arms, a mixing receptacle having a bead, the receptacle being fitted between the arms with its bead resting thereon, mixing means operating within the receptacle, the said mixing means including a dasher shaft, a bearing in which the shaft is mounted, a second bearing comprising hinged bearing sections, and means for holding the sections closed about the shaft and means for rotating the shaft. Y

25. A support for a mixingv machine or the like comprising a supporting plate provided at its lower edge with spaced depending lugs and at the upper ends of said lugs with horizontally projecting lugs, the said lugs being designed to respectively engage the edge and top of a base upon which the support is mounted, and a clamp member carried by the plate and includinga clamping arm projecting between the horizontally extending lugs and arranged also to engage the top of the base and a clamping arm arranged to extend beneath the base and carrying a v clamping element.

In testimony whereof I aiix my signature in presence of two witnesses.

EUGENE A. LAHIERE.

Copies of this patent may be obtained for ve cents each, by addressing' the Commissioner of Patents, Washington, D. C. 

